Paper Bridge STEM Challenge Worksheet
What you do (Shape makes strength): 1. Place two books 15 cm apart, low and steady. 2. Lay a flat sheet across and add coins one by one in the middle until it falls. 3. Fold the same kind of sheet into a zigzag and test it the same way. 4. Record the coins each shape holds, then wash your hands.
NameDateTime takenScore ___ / 40
- 1.🧺 Do we need turmeric powder for the paper bridge? (a) needed (b) not needed
- 2.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) only water (b) fewer coins (c) the same coins (d) more coins
- 3.⚖️ Fair test — which paper shape holds the most coins? Which of these is the one thing we change? (a) the gap between books (b) the kind of coins (c) the kind of paper (d) the shape of the paper
- 4.True or false: paper with folded edges makes a strong bridge. (a) True (b) False
- 5.🌉 Does a torn flat sheet make a strong or a weak bridge? (a) weak bridge (b) strong bridge
- 6.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) two books (b) a ruler (c) a magnet (d) sheets of paper
- 7.🛟 How should the two books be placed for the paper bridge? (a) low and steady (b) on a stool edge (c) high and wobbly (d) on top of a pet
- 8.🌉 Which of these makes a strong bridge? (a) one flat sheet (b) a wet flat sheet (c) paper with folded edges (d) a flat tissue
- 9.⚖️ Fair test — which paper shape holds the most coins? True or false: where coins are placed is kept the same. (a) False (b) True
- 10.True or false: a hollow bird bone gets its strength from a tube shape. (a) True (b) False
- 11.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) more (b) the same number of (c) zero (d) fewer
- 12.🏗️ Which of these gets its strength from a tube shape? (a) a bridge truss (b) a roof frame (c) an old stone bridge (d) a hollow bird bone
- 13.True or false: coins is not needed for the paper bridge. (a) True (b) False
- 14.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a balloon (b) a ruler (c) coins (d) two books
- 15.True or false: a roof frame gets its strength from a tube shape. (a) True (b) False
- 16.🏗️ Which of these gets its strength from arches or domes? (a) a bridge truss (b) an electric tower (c) a round pillar (d) a temple dome
- 17.🔺 Which shape do engineers use in bridges and towers because it keeps its shape under a push? (a) the square (b) the star (c) the heart shape (d) the triangle
- 18.⚖️ Fair test — which paper shape holds the most coins? Which of these is kept the same? (a) where coins are placed (b) coins it holds (c) the shape of the paper
- 19.🧺 Which of these is not needed for the paper bridge? (a) a ruler (b) sheets of paper (c) two books (d) yeast
- 20.🌉 Which of these makes a weak bridge? (a) paper with folded edges (b) rolled paper tubes (c) a torn flat sheet (d) a U-shaped channel
- 21.🌉 Which of these makes a strong bridge? (a) a wet flat sheet (b) rolled paper tubes (c) one flat sheet (d) a torn flat sheet
- 22.True or false: turmeric powder is needed for the paper bridge. (a) False (b) True
- 23.⚖️ Fair test — which paper shape holds the most coins? Which of these is kept the same? (a) the shape of the paper (b) coins it holds (c) the kind of paper
- 24.True or false: sheets of paper is not needed for the paper bridge. (a) False (b) True
- 25.🧺 Do we need a battery cell for the paper bridge? (a) needed (b) not needed
- 26.True or false: a ruler is not needed for the paper bridge. (a) True (b) False
- 27.True or false: an eggshell gets its strength from a tube shape. (a) False (b) True
- 28.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) two books (b) sheets of paper (c) a battery cell (d) coins
- 29.🏗️ Where does a roof frame get its strength from? (a) arches and domes (b) tubes (c) triangles
- 30.🏗️ Which of these gets its strength from triangles? (a) a round pillar (b) a bridge truss (c) a hollow bird bone (d) an old stone bridge
- 31.🏗️ Where does an eggshell get its strength from? (a) arches and domes (b) tubes (c) triangles
- 32.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) two books (b) a ruler (c) turmeric powder (d) sheets of paper
- 33.🧺 Which of these is not needed for the paper bridge? (a) a ruler (b) sheets of paper (c) two books (d) a magnet
- 34.🏗️ Which of these gets its strength from arches or domes? (a) a bamboo pole (b) a roof frame (c) an eggshell (d) an electric tower
- 35.🔍 Which is the odd one out? (a) a zigzag-folded sheet (b) one flat sheet (c) a torn flat sheet (d) a flat tissue
- 36.True or false: a mirror is not needed for the paper bridge. (a) False (b) True
- 37.🔮 Predict: you put the coins in the middle instead of near the ends. The bridge bends ___. (a) not at all (b) more (c) upward (d) less
- 38.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a ruler (b) two books (c) a mirror (d) sheets of paper
- 39.🧺 Which of these is needed for the paper bridge? (a) a battery cell (b) a magnet (c) a mirror (d) coins
- 40.⚖️ Fair test — which paper shape holds the most coins? Which of these is kept the same? (a) the shape of the paper (b) the kind of coins (c) coins it holds
Answer key
- not needed
- fewer coins
- the shape of the paper
- True
- weak bridge
- a magnet
- low and steady
- paper with folded edges
- True
- True
- more
- a hollow bird bone
- False
- a balloon
- False
- a temple dome
- the triangle
- where coins are placed
- yeast
- a torn flat sheet
- rolled paper tubes
- False
- the kind of paper
- False
- not needed
- False
- False
- a battery cell
- triangles
- a bridge truss
- arches and domes
- turmeric powder
- a magnet
- an eggshell
- a zigzag-folded sheet
- True
- more
- a mirror
- coins
- the kind of coins
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